Round Whitefish (Prosopium cylindraceum)

The round whitefish, also called the menominee, is an elusive species. A "sasquatch" of the Great Lakes, so to speak. As they are rarely seen and few anglers catch them, there's some truth to this idea. Debunking this myth, however, is the fact that round whitefish venture into shallow areas (where fishing mainly happens) twice a year — from April to May and October to November. Otherwise, they take up residence in waters up to 150 feet deep and bottom-feed on clams, snails, insect larvae, and fish eggs far from prying eyes. This tendency for solitude carries through the year. Even when round whitefish congregate during spawning season, they pair off to spawn in private.